GoGoAnime for your Android devices from  

Tetsujin 28-go 2004 Description:

Plot Summary: In post-WWII Japan, Prof. Shikishima has built up Shikishima Industries to be a technological powerhouse, working on developing robots. However, at the heart of their success lurks a dark secret from the war, something that cost the life of Prof. Kaneda, the mentor of Prof. Shikishima. Now Kaneda's son, Shoutarou, is about to learn the truth, and it will change him forever.
Tetsujin 28-go 2004 Episodes: